Province of Alessandria

Earthquakes today in Coniolo

Today, within 30 km: no earthquakes recorded (updated at 10:49). Latest: M1.7 on 5 December 2022 at 17:47, 4 km West of Pietra Marazzi, 35 km deep.

1.7
very light

Latest earthquake within 30 km

4 km West of Pietra Marazzi

3 years ago · 5 Dec 2022, 17:47
Depth 35 km

Seismic activity within 30 km

30 km radius
1,408
days since the last quake within 30 km
7
quakes recorded since 2015
~1.7 years
on average, one quake every
2.1
The strongest within 30 km
3 km South-East of Castelletto Monferrato
6 years ago · 6 Jan 2020, 09:28

INGV catalogue epicentres of the last ~12 years, within the given radius from the town centre.

How seismic is Coniolo: zone 4

Zone4
Seismic zone 4

The quietest class: the probability of strong earthquakes is very low.

Official Civil Protection classification (upd. 2025), used for building codes.

Very low
Expected shaking, compared with the other Italian municipalities (INGV MPS04 model)

Hazard describes the long-term expected shaking: it is not a forecast. Technical value: ag = 0.038 g (10% probability of exceedance in 50 years, rigid soil).

Why the ground rarely shakes here

Coniolo sits in one of the most stable areas of Italy: far from the boundary between the Eurasian and African plates, on ancient, rigid crust that hardly accumulates tectonic stress any more.

That is why earthquakes here are rare and almost always weak: a small geological privilege.

Closest earthquake
Earthquake details
1
In the town
total on record
0
In the town
last 12 months
0
Within 30 km
last 12 months
M2.1
Strongest since 2015
Within 30 km

“Within 30 km”: epicentres less than 30 km from the centre of Coniolo. “In the town”: quakes whose nearest town to the epicentre is Coniolo.

Latest earthquake attributed to Coniolo: 7 June 2016 · 451 inhabitants

The seismic history of Coniolo

The earthquakes that were actually felt in Coniolo over the centuries, with the intensity observed on site (Mercalli MCS scale).

  1. 2001NF18 July 2001

    Imperceptible: only instruments record it.

    Monferrato earthquake (M4.2), epicentre 39 km away · observed at Coniolo (Coniolo Bricco)

  2. 1887III-IV23 February 1887

    Moderate: felt by many indoors; glasses and dishes rattle.

    Liguria occidentale earthquake (M6.3), epicentre 144 km away · observed at Coniolo (Coniolo Bricco)

Source: Italian Macroseismic Database DBMI15 (INGV, CC BY 4.0).

The great earthquakes in this area's history

Almost a thousand years of catalogues: the strongest documented events within ~50 km.

20004.9
Monferrato earthquake
21 August 2000 · 27 km from here
VIStrong: felt by everyone, many get scared; objects fall, first light damage to buildings.
13694.9
Alessandria earthquake
1 February 1369 · 32 km from here
VII-VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19874.8
Lomellina earthquake
21 July 1987 · 28 km from here
19184.6
Pianura lombarda earthquake
13 January 1918 · 49 km from here
IV-VRather strong: felt by almost everyone; hanging objects swing.

Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).

The closest seismic structure

Western Monferrato

The town sits above this source area: the deep structure where this area's earthquakes can originate.

estimated maximum magnitude 6.4between 1 and 8 km deep

Faults are mapped to build better and understand the territory: knowing them says nothing about when an earthquake will occur, which remains unpredictable. Source: DISS 3.3 (INGV, CC BY 4.0).

Over time within 30 km

October 2026no events
Jan '25
Apr
Jul
Oct
Jan '26
Apr
Jul
Oct

Earthquake map within 30 km

7 events
Magnitude:lightweakmoderatestrong

Latest earthquakes within 30 km

1.7
4 km West of Pietra Marazzi
29 km South-East · 35 km
3 years ago
5 Dec 2022, 17:47
2.1
6 years ago
6 Jan 2020, 09:28
1.4
7 years ago
18 May 2019, 06:32
1.8
2 km South of Cossombrato
28 km South-West · 23 km
9 years ago
28 Sept 2017, 06:06
1.7
1 km West of Coniolo
1 km West · 63 km
10 years ago
7 Jun 2016, 07:57
2.1
2 km North-West of Conzano
13 km South-East · 49 km
11 years ago
22 Jul 2015, 14:50
1.9
1 km West of Solonghello
8 km West · 61 km
11 years ago
17 Apr 2015, 13:30

Nearby towns

How does it compare with the surroundings?

Coniolo records more quakes than the average of its province.

quietermore active
More epicentres than 66% of the 187 towns in the province.
Coniolo1
Nearby towns average0.2

Each quake is attributed to the town closest to its epicentre: the numbers describe the area, not the municipal territory alone.

Context

Province of Alessandria0 events · last 30 daysPiedmont region58 events · last 30 days
ISTAT code: 006060

Frequently asked questions

Were there earthquakes near Coniolo today?

No, no quakes were recorded today within 30 km of Coniolo. The latest dates back to 5 December 2022.

Is Coniolo a seismic area?

Coniolo is classified in seismic zone 4 by the Civil Protection. The quietest class: the probability of strong earthquakes is very low.

What was the strongest earthquake near Coniolo?

In the INGV catalogue since 2015, the strongest earthquake within 30 km of Coniolo was magnitude 2.1, on 6 January 2020.

When was the last quake near Coniolo?

The last quake recorded within 30 km of Coniolo dates back to 5 December 2022, magnitude 1.7.

Tip. Click a nearby town to explore its seismicity.

Sources:INGV earthquake catalogueDBMI15 macroseismic historyCivil Protection seismic classification

Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)